One of President Donald Trump's promises upon taking office was to revamp vehicle emissions regulations established by the previous administration. That is now officially underway in what the US Environmental Protection Agency (EPA) is calling the "biggest deregulatory action in US history." You can peruse all 26 press releases published yesterday by the EPA regarding proposed changes to air quality standards, groundwater pollution, and more. For our purposes, we'll focus on just one—the action to eliminate the "Biden-Harris Electric Vehicle Mandate." Finalized in March 2024, the rule called for significant reductions in carbon emissions beginning in 2027. Starting first with…